Truck



R B. COTTRELL TRUCK Aug. 21, 1934.

,ori mal Filed Sept. 24, 1952 2 Sheets-Sheet 1 3nventor Ba e/m wrezz,

Aug; g1, 1934. R, a OT EL 1,970,841

1 TRUCK Original Filed Sept. 24, 1932 2 Sheets-Sheet 2 Patented Aug. 21, .1934

raucx Robert B. Gottrell, Chicago, llL, usignor to American Steel Foundries, Chicago, lllaa corporationof New Jersey Original application September 24, 1932, Serial '-No. 634,747. Divided and this application Novemberlo, 1932, Serial No. 842,094

so 1 (c1; ice-197) This invention pertains to truck construction,

.15 truck parts, car body and lading is violent and destructive and results in-much damagejto lading.- Track or wheel irregularities; even if very slight,

will set up this oscillation and when the frequenecy with which these irregularities are passed over agrees with the vibration 'period of the springs the motion amplifies and continues, due to the lack of dampening'qualities in coil springs. The motion may amplify to the extent of causing derailment of the truck.-- 7

Efforts have been made to improve this condition by the use of frictional devices with the coil springs for the purpose 'of dampening the motion; but unless considerable friction is obtained they are not effective enough and if suflic'ient friction is obtained the spring actionbecomes too .stiff and lacks sensitivity; that is in'construction's heretofore contemplated-a. device constructed to provide suilicient friction for rough track conditions'would be inadequate and the spring devices B5 used wouldibe' too conditions.

Passenger car trucks are generally easy riding, due'to the use of both coil and elliptic leaf springs in series; the coil springs responding to the light,

10 quickshocks', the leaf springs to the slow; heavy impulses. Coil springs are quick and sensitive to'response, leaf springs relatively less'so, partly due to frictional work"absorptionbetween the leaves. Forthis reason, and also .by providing to coil and leaf springs or springs of different charstiff for average or fgood' track .acteristics, they tend to dampen each other's vii-- Thisis particularly due to the complete 'duplica- =ti on of carrying capacity in both coil. and leaf springs. I 5v It is therefore an object of this invention to vide a truck, construction wherein quick and inelevation of the truck construction shown'in :Figures 1 and 2, thesame being taken substanprovide a car truck which provides good riding qualities, and. at the same time is economical. to make and maintain, is simple and'light in construction and fulfills all requirements of manufacture and service. 4 a

1 Another object is to provide a cartruck wherein springs .of' -diiferent character are arranged so that each; tends to dampen out the vibrations of the other. f

Still another object is to provide spring assemblies wherein there is provided softer cushioning action under light loads,- while at, the same time providing the necessary stiffness and ca-.-- pacity under heavy loads, these features being combined also to provide a structure which reduc'es any tendency toward synchronous vibrationof the springs. v

' Yet another object of the invention is to proexpensive wheel change can be effected.

A still further object is to provide a truck construction wherein springs of different character may be arranged for initials'erial-or parallel-operation. v I

With these and-various other objects in view, the invention may consist-of certain novel-fea-- tures of construction and operation as will be more fully described-and particularly pointed out in the specification, drawings and claims appended hereto.

In .the drawings, which-illustrate embodiments of the device and wherein-like reference characters are used to-designate l ke parts- Figured is a fragmentary top plan "view of a truck construction embodying the invention;

Figure 2 is a side elevation of'thetruck construction shown in Figurelp Figure 3 is. a transverse fragmentary sectional tially in the plane of the transverse center lineoft'hetrucmand' Figures 4 and 5 are transverse fragmentary sectional elevations correspondinglto Figure 3 showing otherm'odifled forms of truck .constructions 'embodying'the invention;

-This case is a division. gar-application, Serial Number 634,747, filed September-24, 193 2.

Referring first of all more. particularly to. the truck construction shown 'in Figures 1, 2 and 3, the truck-side frame' '10 consists essentially of the compression member'12 and the tension member 14, said members mergin adiacent'the ends'. thereof as at 16 and being 'providedwith the journal-boxes 18 having cooperative relano 2 tion with the journal ends of the wheel and axle assemblies 20. The side frame is provided withthe spaced struts or columns 22 formed integral with'the tension and compression members and disposed to form the window 24 therewith. The load carrying member, which, in the construction shown is the bolster 26 having the center and side bearings 28 and 30, is provided with an end portionextending into the window 24 and provided with column guide cooperating surfaces 32 defined by the inner and outer spaced I lugs 34 and 36 a'nd having sliding cooperation with the column guides 37 of the columns 22.

The end portion of the bolster adjacent the window 24 is provided with the spring seat 38 accommodating the coil springs-10. springs supporting the bolster are shown as disposed on the spring seat 42 provided on the spring plank 44, the spring plank serving to tie the spaced side frames 10 together, though it is to be understood that this spring plank may be omitted.

The spring plank 44 is supported on the widcried seat 46 of the tension member, said seat being disposed between the'columns 22. The tension member 14 adjacent the center thereof is provided with the spring housing 48 formed integral with the tension member and disposed below the window 24. The housing 48 is profriction rollers 52 which are interposed between device shown, which are merely byway of illus-- tration and not limitation, as various and other vided adjacent the'ends thereof with the spring or roller seats for accommodating the antipreciated that the bolster is supported on coiland elliptic springs arranged substantially in parallel, movement ofthe bolster being resiliently resisted by both the coil and elliptic springs whereby the friction between the leaves of-.' the elliptic spring serve as a dampener on the oscillations of the springs of the helical groups. An alternative arrangement may be made by providing a shortened plunger 61, as. shownin-Figure 4. whereby the bolster i initially supported a "by only the .coil springs.

arrangement a predetermined movement 'of the bolster is necessary, before the leaf springs operate so that there will be aserial operation-of the resilient means. The resilient support may also be re- ,yersed wherein the bolster is initially supp rtcd.

by the leaf springs, in which case the-plungerq.

63 would be lengthened as shown'inrigure 5. Increased spring capacity is obtained by the arrangement of the trucks 'illu'strated:-, further. a very light'helical'spring may be used as the.

capacity of the springs is. supplemented by that of the leaf;springs. this type oi truck the spaced struts tend to make the loads more 'wide- 1y distributed whereby -a truck frame of increased strength is'pr'ovided, and ,of course a much lighter truck may be provided with this type of side frame, as no spring plank is neces can. ,Itistobeu'nderstoodthatIdo notwishfo belimitedby the exact embodiments of the forms --ofthe...dll ,ce will, of course be apparent to those skilled-in the art without departing The coil from the spirit of the invention or the scope of the claims.

What is claimed is:

1. In a car truck, the combination of tension and compression members, spaced integral con,- necting columns forming a. window with said tension and compression members. said tension.

member having a spring housing disposed below said window, said housing having spaced seats therein fixed with respect thereto and being ,slotted for communication with said window, spring means supported on said seats, a load carrying member supported on coil springs in said window I and provided with a member extending through the slot and 'in engagement with said spring means, said spring means being of different character than saidcoil springs and operating in the same direction as said coil springs.

2. In a car truck, the. combination of tension and compression membersyspaced integral connecting columns forming a window with said ten- .sion and compression members, 'said tension member having a spring housing disposed below said-window, said housing having spaced seats on a portion thereof and within the same and being slotted for communication with said-window', a leaf spring on saidseats, a load carrying member supported on coil springs in said window andprovided with a member extendingthrough the slot and in engagement-with said leaf spring.

- 3. In a cartruck, the combination 'of,,tensi,on

and compression members, spaced integral-connecting'columns forming a window, with said. tension and compression members. said tensionmember having a spring housing disposed below said window, said housinghaving. spaced seats --on a portion thereof and within the same and being slotted for communication with said window, a semi-elliptic leaf spring on said seats, a load carrying member supported on coil springs in said 'window and provided with a member Ill extending through the slot and in engagement with said semi-elliptic leaf sprihg.

4; In a car truck, the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension member having a spring housing disposed below said window, "said housing having spaced seats on a portion thereof and within the same and being slotted for communication with said window, spring means'cn saidseats. a load carrying member supported on resilient means in said window and provided with a memberextending through the slot and in engagement with said spring means. said spring means being of diiferent characterthan said resilient means and acting in'the same directionas said resilient means.

4 5. In a car truck, the combination of. tension andcompression members, spaced integralconnecting columns forming a window with said tension and compression members. said tension member 'having a spring housing disposed below, said window,-said housing having spaced: I

seats on a portion thereof and within the same andbeing slotted for communication .with'said' rying member supported on resilient means in said window and provided with amember extending through the slot and in engagement with said leaf spring.

necting columns forming a window with said tension and compression members. said tension 6.- In a car truck, the combination of tension. and compression members, spaced integral con-' window," a leaf spring .on said seats, a load carnewest member having a spring housing disposed below said window, said housi'ng having spaced seats on a portion thereof and within the same and being slotted for communication with said window, a semi-elliptic leaf. spring on said seats, a load carrying member supported on resilient means in said window and provided with a member extending through the slot and in engagement with said semi-elliptic leaf spring.

7. In a car truck, the combination of tension and compression members, spaced integral connecting columns forming a window with said-tension and compression members, said tension member having a spring housing disposed below said window, said housing having spaced seats on a portion thereof and within the same and being slotted for communication with said window, a semi-elliptic leaf spring anti-frictionally supported on said seats, a load carrying member supported on coil springs in said window and provided with a member extending through the slot and in engagement with said semi-elliptic leaf spring.

8. In a car truck, the combination of a side frame, a spring housing disposed thereon, said housinghaving spaced seats on a portion thereof and within the same and being slotted, a semielliptic leaf spring supported on said seats, a loadcarrying member supported on said side frame by coil springs and being provided with a member extending through the slot and in engagement with said leaf spring.

9. In a side frame, the combination of tension and compression members and forming a window, the tension member in said window forming a seat and having a slot therein, and-a spring housing disposed below said seat, said housing being provided with spaced leaf spring seats on a portion thereof and within the same.

10, In a side frame, the combination of journal boxes, a member connecting said journal boxes, said member having a seat portion, and a spring housing disposed adjacent said seat portion, said seat portion forming the roof of said housing, said housing being provided with spaced leaf spring seats on a portion thereof and Within the same.

11. In a car truck, the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension the slot'and being arranged to operate-said spring means only after a predetermined movement of said load carrying member, said coil spring acting in the same direction as said friction spring means.

12. In a car truck, the combination of tension and compression members, spaced integral connecting columns. forming a window with said tension and compression members, said tension member having a spring housing disposed below said window, said housing having spaced seats on a portion thereof within the same and being slotted for communication with said window, a leaf spring on said seats, a load carrying member supported on coil springs in said window and provided with a member extending through the slot and being arranged to operate said leaf spring only after a predetermined movement of said load carrying member.

13. In a-car truck, the combination of tension I and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tensionmember'having a spring housing disposed below said window, said housing having spaced seats on a portion thereof and within the same and being slotted for communication with said window, a semi-elliptic leaf spring on said seats, a load carrying member supported on coil springs in said window and provided with a member extending through the slot and being arranged to operate said leaf spring only after a predetermined movement of said load carrying member.

14. In a car truck, the combination of tension and compression members, spaced integral connecting columns forming a .window with said tension and compression members, said tension member having a spring housing disposed below said window, said housing having spaced seats on a portion thereof and within the same and being slotted for communication with said window,

springs in said window adapted to be operated by said load carrying member only after a predetermined movement thereof. 7

15. In a railway vehicle, in combination, a

side frame formed with compression and tension members spaced at intermediate portions by guide columns leaving a bolster opening therebetween, the portion of the tension member beneath the bolster opening being hollow, spaced spring seats fixed in said housing, semi-elliptic leaf springmeans enclosed in said hollow portion beneath the bolster opening and supported by said seats, spring means of a different type seated on said tension member above said enclosed spring means and acting in substantially the same direction, and a bolster supported by both of said spring means.

16. In a car truck including and a.

side frame having a shelf, spring means on said shelf for supporting the. bolster, and semi-elliptic leaf spring means below said shelf and extending longitudinally. of the side frame for supporting the bolster, said leaf spring means being supported at the ends thereof on fixed seats on said side frame and within the vertical plane thereof.

1'1. In a car truck including a bolster and a side frame having a shelf, spring means on said shelf for supporting the bolster, and leaf spring means'below said shelf for supportingthe bol-- ster, said leaf spring means beinglocated entirely within the confines of the side frame and extending longitudinally of the latter, said leaf spring means being supported at the ends there- 71 of on fixed seats on said side frame and within the vertical plane thereof. e

18. In a car truck including a bolster, a side frame having a shelf and a tension portion extending below said shelf, spring means on said shelf for supporting the bolster, leaf spring means in said tension portion for supporting said bolster, said leaf spring means being located entirely within the confines of said tension member, said leaf spring means being supported at the ends thereof on fixed seats on said side frame and within the vertical plane thereof, and means supporting said leaf spring means in an elevated position with respect to the bottom of said tension portion.

19. In a car truck, a bolster, a side frame having a-shelf and a tension portion below said shelf, leaf spring means extending longitudinally of the side frame and positioned within the side walls of said tension portion, and means on said bolste'rprojecting through said shelf for. engagement with said leaf spring means, said leaf spring means being supported at the ends thereof on fixed seats on said side frame and within the vertical plane thereof. i

20. In a car truck, the combination of a side frame having tension and compression members and spaced connecting struts disposed therebetween, a spring supported on said side frame, a load carrying member supported on said spring, a spring of different form from said first named spring seated on said side frame at a plurality of points in the plane of saidframe and below the support of said first named spring on said side frame, and a member embraced by a portion of said side frame and interposed between one of said springs and said load carrying member whereby said springs support said load carrying member in parallel.

21. In a car truck, the combination of a side frame having tension and compression members and spaced connecting struts disposed therebetween, 2. spring supported on said side frame on a seat disposed between said struts, a load carrying member supported on said spring, and a spring of different form from said first named .spring for supporting said load carrying member in parallel with said first named spring, said last named spring being seated on said side frame below the support of said first named spring, on said side frame, one of said springs being a longitudinally dispose'dleaf spring supportedby spaced seats disposed on said side frame in the plane of said side frame.

22. In afcar truck, the combination of a side frame having tension and compression members and spaced connecting struts disposed 'therebetween, said tension member having upper and lower members, a spring supported on said upper member, a load carrying member supported on said spring, and a spring of different form from said first named spring for supporting said load carryingmember in parallel with said first named spring, said last named spring being seated on said lower member on spaced seats disposed thereon.

23. In a car truck, the combination of a side frame having tension and compression members supporting portion,

and spaced connecting struts disposed therebe tween, said tension member'having upper and lower members, a spring supported on said upper member, a load carrying member supported on said spring, and a spring of different form from said first named spring for'supporting said load carrying member in parallel with said first named spring, said last named spring being seated on said lower member, one of said springs being a leaf spring supported by spaced seats disposed on said side frame.

24. In a railway vehicle, spaced side frames having bolster openings therein and a transverse bolster having its ends guided in said openings, each of said side frames having a central spring tension members extending from said spring supporting portion, and columns tension and compression member having a spring with bolster guiding surfaces rising upwardly from said spring supporting portion and tension members, said tension members and bolster columns each having spaced side walls integral with the other, semi-elliptic springs extending longitudinally of said side frames beyond said guiding surfaces, housed between walls of said tension members, and having their ends supported at a distance from said spring supporting portion by leaf spring seats fixed with respect to the respective side frames and interposed between the semielliptic springs and tension member, said semielliptic springs being in load supporting engagement with said bolster, and coil springs supported by said central spring supporting portion on opposite sides of the vertical center line of said semi-elliptic springs, said coil springs being disposed to engage said bolster.

25. In a railway vehicle, spaced side frames having bolster openings therein and a transverse bolster having its ends guided in said openings, each of said side frames having a central spring supporting portion, inclined tension members extending from said spring supporting portion, and columns with bolster guiding surfaces rising upwardly from said spring supporting portion and tension members, said tension members and bolster columns each having spaced side walls integral with the other, each of said tension members having means providing spring seats fixed with respect thereto, semi-elliptic springs extending longitudinally of said side frames intermediate the side walls of said bolster columns and tension members, to beyond said-guiding surfaces and supported by said seats, and coil springs supported by said central spring supporting portion onopposite sides of the vertical center line of said semielliptic springs, all of said springs being disposed to support said bolster.

26. In a railway vehicle, the combination of tension and compression members, spaced integral connecting columns forming a window with said members, said tension housing disposed below said window, said housing having means'providing fixed seats therein disposed to be spaced apart a distance substantially greater than the width of said window, said housfng being apertured for communication with said window, leaf spring means on said seats, a load carrying member supported on coil springs in said window, and means cooperating to support said load carrying member and extending through the apertured portion and in engagement with said leaf spring means.

2'7. In a railway vehicle, the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension member having a spring housing disposed below said window, said housing having means providing fixed seats therein disposed to be spaced aparta distance substantially greater than the width of said. window, said housing being formed with an aperture for communication with said window, a semi-elliptic leaf spring supported on said seats, a load carrying member supportedand spaced struts integrally connectingsaid tension and Compression members and forming a .window therewith, the tension member between said struts having a seat portion, a housing provided on said tension member below said seat portion, and having a lower web-spaced from said seat portion, a load carrying member extending into said window, coil springs interposed between said seat portion and said load carrying member, spaced fixed spring seats disposed in said housing, a longitudinally disposed semi-elliptic leaf spring longer than the distance between said struts seated on said spaced seats, and means interposed between said leaf spring and load carrying member, whereby said load carrying member is resiliently supported on said side frame by said coil and leaf springs.

29. In a railway vehicle, in combination, a side frame having tension and compression members and spaced struts integrally connecting said tension and compression members and forming a window therewith, the tension member between said struts having a seat portion, coil springs supported thereon, a housing provided on said tension member below said seat portion and having a lower web spaced from said seat portion, a load carrying member extending into said window and supported by said coil springs, seats spaced a greater distance apart than the width of said window and fixedly supported in said housing, 'a semi-elliptic leaf spring having its ends supported on said spaced seats, and means interposed between said leaf spring and load carrying member, whereby said load carrying member is resiliently supported onsaid side frame by said coil and leaf springs.

30. In a railway vehicle, a side frame having tension and compression members, spaced integral columns connecting and forming a window with said tension and compression members, said tension member having a spring housing portion disposed below said window, said housing portion having an aperture communicating with said window and enclosing means providing seats disposed longitudinally of said frame and spaced apart, a distance substantially greater than the width of the window, and being fixed with respect to said side frame, a semi-elliptic leaf spring with its ends supported on said seats, a load carrying member, and meanscooperating to support said load carrying member and extending through said aperture and into supporting engagement with said semi-elliptic leaf spring, and coil springs in said window and additionally supporting said load carrying member.

31. In a railway vehicle the combination of a sideframe having tension and compression mem- '.bers, spaced struts integrally connecting said tension and compression members and forming a.

window, said tension member forming a spring housing enclosing seats disposed longitudinally of the frame and spaced apart a distance greater than that between the inner surfaces of said struts and fixed with respect to said side frame, said tension member carrying seats intermediate and above said spaced seats, and a load carrying member supported on said side frame by a leaf spring supported on said spaced seats and coil springs supported on said intermediate seats.

32. In a railwayvehicle, a side frame having tension and compression members, spaced integral columns connecting and forming a window with said tension and compression members, said tension member having a spring housing portion disposed below said window, said housing portion having an aperture communicating with said Window and enclosing means providing seats disposed longitudinally of said frame and spaced apart a distance substantially greater than the width of the window and being fixed with respect to said side frame, a semi-elliptic leaf spring having its ends supported on the fixed seats, a load carrying member, and means cooperating to support said load carrying member and extending through said aperture and supported by said spring.

33. In a car truck the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension member having a spring housing .disposed below said window, said housing having spaced seats therein fixed with respect thereto and spaced apart a distance substantiallygreater than the width of said window, saidhousing being slotted for communication with said window: a semielliptic spring supported on the spaced seats, a load carrying member extending into said window and a member cooperating to support said load carrying member and extending through said slot and supported by said spring.

34. In a car truck, the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension member having a spring housing disposed below said window, said housing having spaced seats therein fixed with respect thereto and spaced apart a distance substantially greater than the width of said window, said housing being slotted for communication with said window, a leaf spring supported on the spaced seats, a load carrying member extending into said window, and a member cooperating to support said load carrying member and extending through said slot and sup-- ported by said spring.

35. In a car truck, the combination of tension and compression members, spaced integral conj necting columns forming a window with said tension and compression members, said tension member having a spring housing disposed below said window,.said housing having spaced seats therein fixed with respect thereto and spaced apart a distance substantially greater than the width of said window, said housing being slotted for communication with said window, vertically acting spring means supported on the spaced seats, a load carrying member extending into said window, and a rigid member extending through said slot and supported by said spring means intermediate the spring seat, said rigid member cooperating to support said load carrying member. 36. In a side frame, the combination of journal boxes, 9. member connecting said journal boxes, said member having a seat portion, and a spring housing disposedadjacent said seat portion, said seat portion forming a portion of said housing, said housing being provided with spaced leaf spring seats on a portion thereof and within the same.

ROBERT B. C'O'I'I'REIL.

' mscLAlMER l.970,84l.Robert B. Ooltrsll,

, Disclaimer? filed May Shel Foundries, approving;

Chicago, Ill. Taucx. I

.11, 1936, by the potentee; the assrgnee, Amerwan Patent dated au ust 21,- 1934.

. Hercbg claim 24 and 2s '0': as am.

i 0am June 2, 1030.1

. sion and Compression members and forming a .window therewith, the tension member between said struts having a seat portion, a housing provided on said tension member below said seat portion, and having a lower web-spaced from said seat portion, a load carrying member extending into said window, coil springs interposed between said seat portion and said load carrying member, spaced fixed spring seats disposed in said housing, a longitudinally disposed semi-elliptic leaf spring longer than the distance between said struts seated on said spaced seats, and means interposed between said leaf spring and load carrying member, whereby said load carrying member is resiliently supported on said side frame by said coil and leaf springs.

29. In a railway vehicle, in combination, a side frame having tension and compression members and spaced struts integrally connecting said tension and compression members and forming a window therewith, the tension member between said struts having a seat portion, coil springs supported thereon, a housing provided on said tension member below said seat portion and having a lower web spaced from said seat portion, a load carrying member extending into said window and supported by said coil springs, seats spaced a greater distance apart than the width of said window and fixedly supported in said housing, 'a semi-elliptic leaf spring having its ends supported on said spaced seats, and means interposed between said leaf spring and load carrying member, whereby said load carrying member is resiliently supported onsaid side frame by said coil and leaf springs.

30. In a railway vehicle, a side frame having tension and compression members, spaced integral columns connecting and forming a window with said tension and compression members, said tension member having a spring housing portion disposed below said window, said housing portion having an aperture communicating with said window and enclosing means providing seats disposed longitudinally of said frame and spaced apart, a distance substantially greater than the width of the window, and being fixed with respect to said side frame, a semi-elliptic leaf spring with its ends supported on said seats, a load carrying member, and meanscooperating to support said load carrying member and extending through said aperture and into supporting engagement with said semi-elliptic leaf spring, and coil springs in said window and additionally supporting said load carrying member.

31. In a railway vehicle the combination of a sideframe having tension and compression mem- '.bers, spaced struts integrally connecting said tension and compression members and forming a.

window, said tension member forming a spring housing enclosing seats disposed longitudinally of the frame and spaced apart a distance greater than that between the inner surfaces of said struts and fixed with respect to said side frame, said tension member carrying seats intermediate and above said spaced seats, and a load carrying member supported on said side frame by a leaf spring supported on said spaced seats and coil springs supported on said intermediate seats.

32. In a railwayvehicle, a side frame having tension and compression members, spaced integral columns connecting and forming a window with said tension and compression members, said tension member having a spring housing portion disposed below said window, said housing portion having an aperture communicating with said Window and enclosing means providing seats disposed longitudinally of said frame and spaced apart a distance substantially greater than the width of the window and being fixed with respect to said side frame, a semi-elliptic leaf spring having its ends supported on the fixed seats, a load carrying member, and means cooperating to support said load carrying member and extending through said aperture and supported by said spring.

33. In a car truck the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension member having a spring housing .disposed below said window, said housing having spaced seats therein fixed with respect thereto and spaced apart a distance substantiallygreater than the width of said window, saidhousing being slotted for communication with said window: a semielliptic spring supported on the spaced seats, a load carrying member extending into said window and a member cooperating to support said load carrying member and extending through said slot and supported by said spring.

34. In a car truck, the combination of tension and compression members, spaced integral connecting columns forming a window with said tension and compression members, said tension member having a spring housing disposed below said window, said housing having spaced seats therein fixed with respect thereto and spaced apart a distance substantially greater than the width of said window, said housing being slotted for communication with said window, a leaf spring supported on the spaced seats, a load carrying member extending into said window, and a member cooperating to support said load carrying member and extending through said slot and sup-- ported by said spring.

35. In a car truck, the combination of tension and compression members, spaced integral conj necting columns forming a window with said tension and compression members, said tension member having a spring housing disposed below said window,.said housing having spaced seats therein fixed with respect thereto and spaced apart a distance substantially greater than the width of said window, said housing being slotted for communication with said window, vertically acting spring means supported on the spaced seats, a load carrying member extending into said window, and a rigid member extending through said slot and supported by said spring means intermediate the spring seat, said rigid member cooperating to support said load carrying member. 36. In a side frame, the combination of journal boxes, 9. member connecting said journal boxes, said member having a seat portion, and a spring housing disposedadjacent said seat portion, said seat portion forming a portion of said housing, said housing being provided with spaced leaf spring seats on a portion thereof and within the same.

ROBERT B. C'O'I'I'REIL.

' mscLAlMER l.970,84l.Robert B. Ooltrsll,

, Disclaimer? filed May Shel Foundries, approving;

Chicago, Ill. Taucx. I

.11, 1936, by the potentee; the assrgnee, Amerwan Patent dated au ust 21,- 1934.

. Hercbg claim 24 and 2s '0': as am.

i 0am June 2, 1030.1 

